If you already have the XO-Comp as a Tribble test reward can you get a second one this way?
The Tribble Exocomp is tactical. This one is engineering. They are completely different DOs from the look of things.
As for the new super-rare duty officers being random in Duty Officer packs, I'm feeling lazy so I'm not going to rant about how the random number generator hates some of us and am instead just going to use a smiley to express my opinion of this.
Please, please, please give us a way to get these duty officers that doesn't involve praying to the random number generation gods.